> Does anyone have the project charter/objectives or similar? Have
> there been any design decisions or approach documented?

GNU Enterprise (http://www.gnuenterprise.org/) is a set of tools which
originally was written by some people who wanted to replace existing
Oracle Forms applications with it. I have never used Oracle Forms
myself, but I guess that GNUe Forms should be pretty near to it.

Although work on explicit compatibility or conversion tools has not yet
started in any way, it would IMHO make a lot of sense to base further
work on GNU Enterprise.